USC sideline

Alex Gallardo / Los Angeles Times

USC Coach Pete Carroll and an assistant try to keep the Trojans on their sideline after some words were exchanged with the Bruins and players spilled onto the field in the final minute of the game Saturday night.

USC Coach Pete Carroll and an assistant try to keep the Trojans on their sideline after some words were exchanged with the Bruins and players spilled onto the field in the final minute of the game Saturday night. (Alex Gallardo / Los Angeles Times)

USC Coach Pete Carroll and an assistant try to keep the Trojans on their sideline after some words were exchanged with the Bruins and players spilled onto the field in the final minute of the game Saturday night.